CWB Level 2 Closed Book EXAM 2023 with
all the correct answers(Actual test 100%
verified)
An arc plasma consists of - CORRECT ANSWER free electrons and positive ions.
Which of the following welding processes is the most commonly used? -
CORRECT ANSWER Arc Welding
The most arc efficient welding process is the _______ process. - CORRECT
ANSWER SAW
Which two areas represent the largest voltage drop in a welding arc? - CORRECT
ANSWER Cathode drop zone and Anode drop zone
The pinch force that aids in droplet detachment during spray transfer is
produced by - CORRECT ANSWER a self—induced magnetic field
Which of the following welding processes produces the least hydrogen weld
metal content?
a. SMAW
b. GTAW
c. SAW
,d. FCAW - CORRECT ANSWER B. GTAW
he majority of the arc energy is transferred to the work when the GTAW process
is operated inpolarity.
a. AC
b. DCEP
c. DCEN - CORRECT ANSWER C. DCEN
Modern inverter GTAW power sources use all methods for arc starting, except
for?
a. Scratch
b. High Frequency
c. Steel Wool
d. Electronic Touch - CORRECT ANSWER c. Steel Wool
he highest deposition rate in the SMAW process occurs in
a. DCEN
b. DCEP
c. AC
d. AC unbalanced - CORRECT ANSWER DCEN
The arc force control in CC welding power sources is used to ___________ in the
SMAW process.
a. reduce the penetration of the weld when the arc length is decreased
b. increase the penetration of the weld when the arc length is decreased
, c. reduce the penetration of the weld when the arc length is increased
d. increase the penetration of the weld when the arc length is increased -
CORRECT ANSWER b. increase the penetration of the weld when the arc length
is decreased
The function of the ingredients within the electrode coating of SMAW
electrodes is to:
a. provide gas shielding, provide slag cover, scavenge impurities, stabilize the arc
and adding alloy elements
b. aid in the weld metal wetting the base metal
c. reduce arc blow
d. conduct a portion of the arc current - CORRECT ANSWER A. Provide gas
shielding, provide slag cover, scavenge impurities, stabilize the arc and adding
alloy elements
The electrodes represented by EXX15, EXX16, and EXX18 have _________as a
major ingredient in the coating.
a. limestone
b. cellulose
c. titania - CORRECT ANSWER a.limestone
The GMAW, FCAW and MCAW processes have these features in common.
a. Constant current power source and constant speed wire feeder
b. Constant voltage power source and constant speed wire feeder
c. Constant current power source and variable speed wire feeder
d. Constant voltage power source and variable speed wire feeder - CORRECT
ANSWER b. Constant voltage power source and constant speed wire feeder
all the correct answers(Actual test 100%
verified)
An arc plasma consists of - CORRECT ANSWER free electrons and positive ions.
Which of the following welding processes is the most commonly used? -
CORRECT ANSWER Arc Welding
The most arc efficient welding process is the _______ process. - CORRECT
ANSWER SAW
Which two areas represent the largest voltage drop in a welding arc? - CORRECT
ANSWER Cathode drop zone and Anode drop zone
The pinch force that aids in droplet detachment during spray transfer is
produced by - CORRECT ANSWER a self—induced magnetic field
Which of the following welding processes produces the least hydrogen weld
metal content?
a. SMAW
b. GTAW
c. SAW
,d. FCAW - CORRECT ANSWER B. GTAW
he majority of the arc energy is transferred to the work when the GTAW process
is operated inpolarity.
a. AC
b. DCEP
c. DCEN - CORRECT ANSWER C. DCEN
Modern inverter GTAW power sources use all methods for arc starting, except
for?
a. Scratch
b. High Frequency
c. Steel Wool
d. Electronic Touch - CORRECT ANSWER c. Steel Wool
he highest deposition rate in the SMAW process occurs in
a. DCEN
b. DCEP
c. AC
d. AC unbalanced - CORRECT ANSWER DCEN
The arc force control in CC welding power sources is used to ___________ in the
SMAW process.
a. reduce the penetration of the weld when the arc length is decreased
b. increase the penetration of the weld when the arc length is decreased
, c. reduce the penetration of the weld when the arc length is increased
d. increase the penetration of the weld when the arc length is increased -
CORRECT ANSWER b. increase the penetration of the weld when the arc length
is decreased
The function of the ingredients within the electrode coating of SMAW
electrodes is to:
a. provide gas shielding, provide slag cover, scavenge impurities, stabilize the arc
and adding alloy elements
b. aid in the weld metal wetting the base metal
c. reduce arc blow
d. conduct a portion of the arc current - CORRECT ANSWER A. Provide gas
shielding, provide slag cover, scavenge impurities, stabilize the arc and adding
alloy elements
The electrodes represented by EXX15, EXX16, and EXX18 have _________as a
major ingredient in the coating.
a. limestone
b. cellulose
c. titania - CORRECT ANSWER a.limestone
The GMAW, FCAW and MCAW processes have these features in common.
a. Constant current power source and constant speed wire feeder
b. Constant voltage power source and constant speed wire feeder
c. Constant current power source and variable speed wire feeder
d. Constant voltage power source and variable speed wire feeder - CORRECT
ANSWER b. Constant voltage power source and constant speed wire feeder
